I have a 2005 impala. I recently received an oil change at a local jiffy lube a technician discovered that there was a power steering fluid leak on my alternator and other parts inside my engine. My car is still under warranty and I took it to the chevy dealership where I bought my car. They kept my car for about 1 1/2 days. They told me they washed the engine and drove it around and they couldn't find the problem, and now 2 months later the leak is back. I don't want to get charged another $40 diagnostic fee, what do i do?